Hi, That makes sense, but.... I can use config-pin to set the value to something like: * pwm* for example: * config-pin P8.14 pwm* will work just fine as will *gpio* and *gpio_pd, etc.*
But, *gpmc* (mode 0) is not a valid choice i.e. config-pin p8.14 gpmc is invalid I tried adding it to the config-pin script for pin 8_14, but that didn't help as it appears the problem is deeper than than. I can't change the value of state in: /sys/devices/platform/ocp/ocp:P8_14_pinmux/state the error I get is: *Cannot write pinmux File: /sys/devices/platform/ocp/ocp:P8_14_pinmux/state* Jeff On Friday, April 19, 2019 at 12:39:21 PM UTC-7, Mala Dies wrote: > > Hello, > > The config-pin utility can be used in user land or user land w/ a .sh > script and .service file to boot the board w/ the required config-pin > utility being present. > > Seth > > P.S. If you know how to do this instead, this may work for you. So, use: > config-pin P8.14 <mode> <--- this would be your mode, i.e. GPIO, UART, and > etc. > > So, if you wanted to put in gpio in <mode>, you could if this is what you > want. Does this sort of make sense? > > On Friday, April 19, 2019 at 1:55:21 PM UTC-5, Jeff Pollard wrote: >> >> >> Hi, >> >> I'm using:* Linux beaglebone 4.14.106-bone-rt-r19 #1 PREEMPT RT Tue >> Mar 26 19:02:06 UTC 2019 armv7l GNU/Linux* >> >> I started by disabling the emmc in uEnv.txt >> >> I then tried to modify the config-pin script for P8_14 (which would be >> gpmc_AD14 as a starting example), but I get >> >> *Cannot write pinmux File: >> /sys/devices/platform/ocp/ocp:P8_14_pinmux/state* >> >> Can anyone give a pointer on how to go about configuring pins to use >> gmpc mode with the config-pin script (or any other method)? >> >> Thanks, >> >> Jeff >> > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
